Food has long been considered medicine in many cultures, but only recently have physicians and veterinarians begun to study the effects of foods on humans and dogs in the United States.  Some of the best cures for common canine ailments are likely already in your kitchen cupboard.  Five of the best foods for dogs – and their uses – are described below. Turmeric This bright yellow spice has been shown slow down the proliferation of cancer cells in both humans and dogs.  The effect is so powerful that when used in conjunction with chemotherapy cancer cell growth can be stopped completely.  Turmeric also has been shown to reduce inflammation and pain in pets, as well.  One way to provide turmeric to your pet is through a paste, which can be made by bringing 2 cups of water to a boil with ½ cup of turmeric powder.  After the water and...